Forum Discussion
pnichols
Mar 24, 2015Explorer II
j-d wrote:
Trailer tandems really scrub in tight manauvers, like jackknifing, on pavement.
That's exactly what I'm talking about ... except you're of course referring to the exaggerated situation of tight turning. The same thing is constantly going on when traveling down the highway on gentle curves, but to a much smaller degree. The basic geometry that causes it is still present.
The net affect on tire wear over thousands of miles is my concern with tandem axle setups. I guess I'm talking about what's best, versus what seems to work good enough such that folks aren't alert to what's really going on. This scrubbing that occurs becomes more detrimental with the heavier the weight that the tandem axles are carrying. I've even seen tandem axles on huge Class A motorhomes, which with all their weight also have to jocky around making tight turns when positioning into camping spots. Uuuuggghhh. :E
Regarding military vehicles and construction vehicles with tandem axels that are much of the time not on solid surfaces - that's another story. For these type of usages, the other advantages of tandem axles probably out-weigh the tread surface wear disadvantages.
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